# Synchronization income invoices

Income invoices are automatically synchronized during each daily WHMCS crontab job.

For the purpose of compulsory synchronization of income invoices.

Go to the **"Tools"** menu item and click **"Synchronization income invoices"**.

As a result, a table with all accounting systems and synchronization parameters will appear

[![2021-11-06_11-22.png](https://doc.puq.info/uploads/images/gallery/2021-11/scaled-1680-/7mo2021-11-06-11-22.png)](https://doc.puq.info/uploads/images/gallery/2021-11/7mo2021-11-06-11-22.png)